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20

Doctor insights on:
Blue Feces

1

Not mildew:
If this is a persistent problem, you may want to get it checked out especially for fat malabsorption (Celiac disease etc) when the stool floats. If this happens only for a few days, don't be worried over it. It is unlikely to be mildew even though yeast is a usually resident in the intestines.
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3

Maybe:
Kiwi fruit has black seeds that could cause black seeds in your stool. It should not cause uniformly black stool. If you have uniformly black stool, this may indicate upper gastrointestinal bleeding and would warrant seeing your doctor.
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5

Color change:
The stool can go through color changes on a daily basis, mainly dependent on the foods that you eat. If the stool color is consistently an abnormal color, independent of your diet, then follow with a doctor for further evaluation. It could be the sign of a malabsorption issue.
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8

SERIOUS ISSUE:
True "yellow" eyes (sclera) need to be assessed for systemic jaundice which signifies liver disease ; need for medical evaluation. Your associated sx's are serious. Please seek out medical evaluation now...More commonly, a yellowish spot in the horizontal area is an actinic degeneration known as a pinguecula...Also pterygium, any eye care physician could quickly determine this with exam.
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9

Too much coffee?:
Dark-colored stools may result from iron supplements, foods you eat (like a lot of spinach), substances (like peptobismol), but most significantly suggests bleeding. When blood is denatured by acid in your stomach, as from ulcers, stools will turn tarry ("melena"). Blood may also be ingested from nose bleeds, bleeding gums... Persistent melena (without obvious cause) ; symptoms warrants md visit.
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11

Possibly :
Possibly could be due to black beans. Black stools the concern is for G.I. bleeding please get evaluated properly by primary care position. Signs and symptoms of chest painshortness of breathlightheadedness your weakness would require going to an emergency room promptly
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13

See below:
Red wine in itself will not cause a black tarry stool.But alcohol can cause GI bleeding which will give black tarry stools. If you have black tarry stools get medical attention immediately.
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15

In short, not really:
Eye color can change due to medication or disease. But the changes are usually from lighter pigment to darker. Some people as they age will report their eyes changing to blue when in fact the peripheral cornea acquires cholesterol deposits (arcus) that can give some people the impression their eyes are turning blue.
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16

Unsure...:
Unsure what "black beads" in your stool might be but anytime the stool is black in color there is concern for blood. Your doctor should check the stool for blood and if positive conduct an investigation for the source. Also, i see you have reached the age of 50 which is the milepost we recommend a colonoscopy for colon cancer screening. "an ounce of prevention is worth a pound of cure".
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18

Possessed by aliens.:
Just kidding!!!
Bile, fiber, bacteria, and gasses all contribute to the color,
density, and specific gravity of stool. There many variations of normal, and the kind you describe is certainly common and without pathology.
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20

Dietary sources:
often time dark green stools are the result of diet. foods that have blue in them such as blueberries or other blue food coloring can cause dark green stools. If this persists after eliminating this from your diet then you may want to consider seeing a medical professional
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